I do agree with mac in that what ever the cross or place there those few out there that you can't just stop after a couple of minutes no matter what they take a take that bit more work once they've seen a few dogs not fist year hares n although you don't see many through the season especially these days there's those odd ruthless ones that no dog will stop n don't you just love them because they are the ones that go on to breed the future good ones..